BR9906615A - Dispositivo e processos para transmitir e para receber um sinal de canal para uma estação base em um sistema de comunicação de múltiplo acesso por divisão de código (cdma) - Google Patents

Dispositivo e processos para transmitir e para receber um sinal de canal para uma estação base em um sistema de comunicação de múltiplo acesso por divisão de código (cdma)

Info

Publication number
BR9906615A
BR9906615A BR9906615-7A BR9906615A BR9906615A BR 9906615 A BR9906615 A BR 9906615A BR 9906615 A BR9906615 A BR 9906615A BR 9906615 A BR9906615 A BR 9906615A
Authority
BR
Brazil
Prior art keywords
sequence
period
base station
communication system
cdma
Prior art date
Application number
BR9906615-7A
Other languages
English (en)
Inventor
Hi-Chan Moon
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of BR9906615A publication Critical patent/BR9906615A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/70758—Multimode search, i.e. using multiple search strategies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2662—Arrangements for Wireless System Synchronisation
    • H04B7/2668—Arrangements for Wireless Code-Division Multiple Access [CDMA] System Synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H04J13/12—Generation of orthogonal codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
    • H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
    • H04W56/007—Open loop measurement
    • H04W56/0075—Open loop measurement based on arrival time vs. expected arrival time
    • H04W56/0085—Open loop measurement based on arrival time vs. expected arrival time detecting a given structure in the signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0048—Walsh
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

"DISPOSITIVOS E PROCESSOS PARA TRANSMITIR E PARA RECEBER UM SINAL DE CANAL PARA UMA ESTAçãO BASE EM UM SISTEMA DE COMUNICAçãO DE MúLTIPLO ACESSO POR DIVISãO DE CóDIGO (CDMA)". Dispositivo para efetuar rapidamente aquisição inicial e sincronização de quadro de um sinal recebido para um receptor em um sistema de comunicação CDMA. Para este fim, a estação base multiplica uma seq³ência de distribuição para um canal piloto, por uma configuração síncrona que mantém o mesmo valor para uma seq³ência de um período curto e para um período desta seq³ência, porém possui valor diferente em um limite de um período de seq³ência curta. Uma estação móvel calcula inicialmente a seq³ência de distribuição do período curto e o valor de correlação para efetuar aquisição inicial, e desespalha duração de N "chips" em torno de um limite de um período de seq³ência de distribuição curta para detectar a configuração multiplicada, para adquirir deste modo sincronização de um quadro de dados.
BR9906615-7A 1998-07-21 1999-07-21 Dispositivo e processos para transmitir e para receber um sinal de canal para uma estação base em um sistema de comunicação de múltiplo acesso por divisão de código (cdma) BR9906615A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1019980029344A KR20000009140A (ko) 1998-07-21 1998-07-21 확산대역 통신시스템의 초기 포착 및 프레임동기 장치 및 방법
PCT/KR1999/000389 WO2000005902A2 (en) 1998-07-21 1999-07-21 Initial acquisition and frame synchronization in spread spectrum communication system

Publications (1)

Publication Number Publication Date
BR9906615A true BR9906615A (pt) 2000-11-28

Family

ID=36590836

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9906615-7A BR9906615A (pt) 1998-07-21 1999-07-21 Dispositivo e processos para transmitir e para receber um sinal de canal para uma estação base em um sistema de comunicação de múltiplo acesso por divisão de código (cdma)

Country Status (10)

Country Link
US (2) US6539047B1 (pt)
EP (1) EP1040605B1 (pt)
KR (1) KR20000009140A (pt)
CN (1) CN1118157C (pt)
AU (1) AU729076C (pt)
BR (1) BR9906615A (pt)
CA (1) CA2303232C (pt)
DE (1) DE69931599T2 (pt)
RU (1) RU2199185C2 (pt)
WO (1) WO2000005902A2 (pt)

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Also Published As

Publication number Publication date
US6788732B2 (en) 2004-09-07
WO2000005902A3 (en) 2000-04-20
WO2000005902A2 (en) 2000-02-03
EP1040605A2 (en) 2000-10-04
US20020191682A1 (en) 2002-12-19
US6539047B1 (en) 2003-03-25
EP1040605B1 (en) 2006-05-31
CA2303232C (en) 2004-12-07
CN1118157C (zh) 2003-08-13
DE69931599D1 (de) 2006-07-06
CA2303232A1 (en) 2000-02-03
CN1274493A (zh) 2000-11-22
AU729076C (en) 2001-08-30
DE69931599T2 (de) 2006-10-05
KR20000009140A (ko) 2000-02-15
RU2199185C2 (ru) 2003-02-20
AU4935099A (en) 2000-02-14
AU729076B2 (en) 2001-01-25

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

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B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 DA RPI 2047 DE 30/03/2010.

B15K Others concerning applications: alteration of classification

Ipc: H04J 13/10 (2011.01), H04B 1/7075 (2011.0